イソシアネート基を有するアロファネートの製造方法

Title:

イソシアネート基を有するアロファネートの製造方法

Document Type and Number:

Japanese Patent JP4070270

Kind Code:

B2

Abstract:

Preparation of (cyclo)allophanates containing(cyclo)aliphatic and/or araliphatic isocyanate groups of formula (I) comprises reacting an isocyanate group-containing (oligo)- oxadiazine-trione of formula (II) with primary or secondary alcohols in the presence of a basic catalyst with a pKa > 6. R = a residue obtained by removing the isocyanate groups from (cyclo)aliphatic or araliphatic diisocyanates; Y = the m-valent residue of a (poly)hydroxy compound with 1-5 OH groups and n and m = 1, 2, 3, 4 or 5,

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Inventors:

Klaus Konitzhi
Helmut Life
Christian Vuamprecht
Harlo Treubel

Application Number:

JP23550997A

Publication Date:

April 02, 2008

Filing Date:

August 18, 1997

Export Citation:

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Assignee:

Bayer Aktiengesellschaft

International Classes:

B01J27/232; C07C275/60; B01J31/02; B01J31/04; C07B61/00; C07C273/02; C07D273/04; C08G18/02; C08G18/78

Domestic Patent References:

JP60110716A
JP60115615A
JP49003000B1

Foreign References:

GB1145952A

Attorney, Agent or Firm:

Aoyama Aoi
Yasuo Shibata

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